Assigstob of one-hale to hengy i



W. 1. HOGAN,

BOLTING UP DEWB Awmm'iow man SEPT. 25, 19m.

Patented 111m] 13, 1911).

cfg.

w. I. HOGAN;

BOLTING UP EVICE.` APPLICATION FILED sPT. 2s. 191B.

Patented #my i3; MEQ;

1n VT ll JNVENTOR er', y i ,oli einer WLLTLAEI T.. HOGAN, F SEATTLE,EVASHINGTN, ASSXGNR 0F ONE*H.PL1F T0 HENRY L.

REYNOLDS, F SEATTLE, WJSHINGTON., y

Speeeaton of Letters Intent.

lppleetion nle September 536, i918. Serial No. 255,877.

, To ell w from it may conce/rn:

Be il; known that L illumini T. l-ioorin', e citizen oi the UnitedStates, and resident or' the city ol ilenltle7 eountjl7 ol: li1'1g7z1ndSeite olflleshing'ton, here invented certain, new :incl 'usefullinprm'einents in Bolting- Up Devices, ot which the ilfolion'ing especiieat-ion.

lily invention relates to on :apparatus which is intended for use inconne-ration with the work. nf'hieh in ship building, is referred to asholting; up. llt consists of an improved apparatus und. menne by which'plates may be temporarily secured in close eontnet preparatory to theirheilig' permanently secured by riveting.

invention comprises the means which 'will he herein illustrated for(loing this work :intl consists of the principal eon'lhinntions of;parte which 'will he (lelinelhy Vthe eeeonipenying eleiins.

The ohjeet orf my invention is to provide :in improved ineens 'for l1rnporerily' seem-in these plates; in posit-ion prelimrntory to rivetingrwhich will very materie-ly rerluee the time required for loing thiswork, und the consequent expense.

""ly invention consists in the use or Ineens oiieroting upon ztprinciple und in e neenZ1 ner which e1 les this Work to he done mucheasier :intl inoA i: rapidly 'than is possible hy the means eustoxnnrilyemployed.

ylfhe accompanying drawings will "illustrote ineens which l have(lerisezl vlor zu eomplishing this result, the saine being those which Inow prefer to use for this purpose. The coustrnetions shown :ire given,not ns in any sense limiting my invention theretol. but fisillustratief@ of the principles employed.

Figure l u. longitmlinnl sectional rien* or' e (levice rlorueeoinplishing; this wor-lr, in 'whiell o power jack, preferably zuroperated, is employed for towing the plates securely together as :ipreliminary to eppliezltimi oi" the linul holding or securing means.

Fig, El is zi separate View oif one or the holts'einployed 'for thiswork, lhe sanne beingteken from n point righi' angles to that of theholt shown in hie'. l

ille, is n sec-lion l'nlren upon the 'plane- :i mie i rien', :ind lflgg.iiiy the form olf apparatus employed for drawing plates together, thesume being operative by hand tl'rrough the medium voi a lever. rThe holtemployed is the saune :is that shown in Fig'.

lin the operntion of ehip yards the irsl; sliep in Isecuring the platesof :l` ship in place, le to piece them in position with holes therein.ior the reception or' the rivets by which they :1re to heperni:.inentlyv secured, and temporarily secure them in proper positionby the use o'l': bolts. rlhese bolts are piaceri in e certain percentageof the holesnnrl the nuts ure turned clown so es to dra-W 'the pluiesforcibly together and hohl them in this position until rivets .muy heplaced in the other holes and riveted down, after which 4the boltsremoved enel rivets plueerl in theee holes also.

This 'operation ot the plates together hy bolts is 'what 1s re iferrerlto :is boltingenp, This work is very leliorions and. consumeseonsirlerebie time. ln 'hiet the worlnnen employed in this one operelion'for exceed the number of these eniiployerl in any ol'l'ier oneoperation in the constructing of ships.

lt is u slow :mtl tedious operation for 'the reason their, the boltsonly he long enough so that, even iif the plates :1re somewhatseparntetl, they muy he drawn down und helrl tightly- .'ogrelvheix 'iloturn up a, nut on e holt through :l (listzniee ol two or three inehes oithe lengrl'h ol" the bolt, oi'flen working in n position whieh isdiserlmntzxgeoos, requires n firent leal oi" time and also hard. .worinln'eonempienee7 the nulnher of bolts "vhieh one parir oi1 men eensec-ure during :i (lziys )voi-li le quite sluell.- f

The holl wliielrl eouteniplzite using 'for lhiay work is .shown in Figs.'l :unl 2. This holt .lfhzis no ihrezuls. lisI4 hezul llnmy he ol :mi7suil'uhle shape. VPrefierolily such :i boli'y wouldl 'he provided withun end 'l1 wllieh is soinen'lmt poinlferh l'his being de- Hirulilemerel;Y lor convenience in inserting it into the hole,` :unl also toennhle the holt to nel, smne\\'h:.l :is n llri'it holt, lio insurenrrurzile registering ol" the holes in the two pluies.

in hier l l here shown two platesy 9 :incl Ellh which pluies :ireprovided with holes which nnitffh when the pluies ure properlyilfeitlonell. l"hro.1gh these holes n holt l temporarily securing thetwo plates may be separated a considera'ble distance. lt is necessarythat these plates be brought together and secured in accurate and tightcontact until they can be permanently secured by rivets.

Each bolt l is provided with a key seat, as 1Q, which designed for thereception of a key 2. This key seat, as herein shown and as I prefer tomake it, consists or' a slot which passes through the axis of the boltfrom side to side and t-he key 2 is a dat key, adapted to pass throughsaid. slot and also preferably slightly tapering` or varying in width,as is clearly shown in Fig. l..

The position of the slot 1Q, the same being' the one which is nearestthe head of the bolt, should be such that its edge nearest to the headl0 is not at a greater distance from the inner surface oft' the headthan the combined thickness ot' the two plates, 9 and 90, which it is tosecure together. Preferably this distance should be a trifle less thanthe combined thickness of these two plates, as has been indicated inFig. 1.

lit is evident that it the two plates 9 and Aloe drawn lirmly togetherand a key 2 be placed in position such as is shown in Fig. 1 and thendrawn snugly home, the key 2 will hold the two plates thus firmlytogether until the key has been driven out. In this manner the platesmay he held as securely together as would be possible by the use of anordinary bolt. i

The bolt l should be of such a length as to have a materially projectingend, and this projecting end should be provided with means whereby itmay be engaged by some means through which power may be applied so as todraw the plates firmly together preparatory to inserting the locking orholding key 2. The means which may be employed for this purpose arequite varied. ll have herein shown two such means, one designed to beoperated by fluid under pressure, suc-h as air, and the other operatedthrough the means et a lever by hand.

In Figs. l and 3T have shown a device designed for operation by a fluidunderl pressure. This fluid would preferably be air. This device has acylinder 3, in which is mounted for reciprocation, a`piston 4, whichpiston has a rod l0 extending through the inner head 30 of the cylinderand provided upon iits outer end with means by which it may he securelyconnected with the holt 1. At the point 33 the cylinder'is 'providedwith a port for the inlet or discharge of the fluid by which the pistonis o erated. This may be controlled manually y any convenient means. Forthis 'purpose-I have shown the use of a three-way valve 2A, which may beoperated by hand.

As a convenient and practical means for securing the piston rod 49 tothe bolt l, have shown' a short cylinder or sleev,M1

nsoaeee as to lit a kei 20, 'whit-h and may be identically, the saine as2, 'by which the plates are held :i d awn together. The bolt l has a sekey way 13 placed outwardly 'troni ti y. way l2 tor the reception o'lthis seeond key. ift; rThe cylinder is provided with extensions 31 whichform toet, adapted to engage the surface ot' the plate 90 and serre asthrust members through which the power plied to Vthe plate 90 to'torce.it slm against the plate 9. .e i'iead l() o' 1 engaging the opposite orouter .A the plate 9, acts to resist the strain in opposite direction.are .shown the 3l as herein consisting of a se ental pr tion of thecylinder have sown as having their outer ends provided. r an inwardlyexteiu'linp; ill ""e 35. They purpose of this is merel y to 'furnish aseinen larger surface for engagement f'l`l l pv i] plate 90. inese reeta engage ti opposite sides o the rivet hole. them are openings 32through which t is accessible for the insertion of 'the keys' i5 and 20.

To insure projection of the piston rod and the socket member lil carriedthereby, as soon as the luid pressure is removed, f.. have employed ahelical spri` g i3 which is placed between the outer surface of the lifeton and the cap the ci "ader,

would be put through the by the man at one side tiiereol side of theplate a second many power jack ahove described er soi alent mechanism,would co iueinber #l1 with 'the end "l: tno het J of the key 2l. The f Ythen be admitted to ylinu Il@ would powerfully lore-e the tivo getherand ma e i holding l' The stated, would the 'thickness of secured tionsin the t either due to inequality to any other conditions, a washer oployed to insertion. oil. 1" eraely he sl i n therefore holo tile f iafter the fluid moved, as it we driving the liuid v der, the springcylinder and ay hw l veo vice havin a seeke'; membel adapted te overSaid "0R and :L key wey adapted register with the outermos key wey inthe b01t, and 91 key acepbed be ente? the@ Ways to seeu're said Socketpiece and the e together. y i

4. A bolting-up device fols plates eemp'fe- ,ing a power device and abolt pro-Vdedwh means for nterockig engagement and 10 readydisengagement with said powe: device,

